I'm New & Very Depressed

Hello everyone!
I am new here. I am crying as I write this because I think I have finally found out what is wrong with me and I cannot believe so many women have felt the same things as me!
A little back story...
I am 25 years old. I had my son at age 18 and got the Mirena put in at my 6 week. I had no issues the first year. Then the second year I started feeling sharp pains during and after intercourse. But I was never too worried about it. My periods were short and sweet and I loved that.
I had it removed at about 3.5 years because my husband and I wanted to start trying for a baby. A year later I was pregnant with my daughter. She was born on March 7th. When she was born, I had had the Mirena out for almost two years.
At my six week check up, I decided to go with the Mirena again because I had not had too many issues.
But within a month I started feeling extremely fatigued. I figured it was from having a baby and a 6 year old.
I have now had it in for 2 years. I still am extremely fatigued. My anxiety has been severe since then. (I also thought it was due to having two kids...) I leave the house maybe once or twice a week. (2x is a good week for me.) My mood swings have been horrible for the past two years.
I have just felt very rundown. I have watched my mom friend's run their errands, clean their houses and enjoy their lives with multiple children. For the last year (which is when I realized there is something wrong with me) I have been trying to figure out what is wrong. I've researched Chronic Fatigue Syndrome and actually really believed that was what was wrong with me...up until last week.
My period the past two years have been light and only 3-5 days and it has been some-what regular.
Last week I noticed I was 4 days late. 1 or 2 days, is nothing out of the norm for me, but 4 days had me pretty worried but I figured I was going to start the next day. The next day rolled around and it never started. I began to worry because I FELT pregnant. So I bought two tests and took one. It was negative. So I started researching if the Mirena could cause you to feel pregnant when your period is due. Low and behold, I found tons of other forums with so many different women saying they too, started feeling pregnant every month.
The next day rolled around and I went to go pee and noticed a spot. I was relieved. I did not want to be pregnant. (I was still convinced I was pregnant.)
The rest of the day goes by, and not another single drop on my pad.
I began to worry. The following day I freaked out and took the second test. It was also negative. That night. I had another couple of spots, but then came the worse cramps of my life. I could not sleep at all. They were in my lower back. I have never had cramps that bad or in my lower back before.
So I started doing more research and I came across a couple of people's blogs where they discussed how they felt with the Mirena and how they felt after.
I started reading all of the symptoms, the mood swings, the chronic fatigue, the feeling like your pregnant, the boob pain, the increase in anxiety and depression, the not being able to function.
And I cried because it hit me that the mirena has caused this. I feel I have COMPLETELY wasted two whole years of my life. I feel completely awful about myself. I want more than anything to get the Mirena removed. I feel so upset and depressed that I've lost two years of my life due to something I never thought possible.
I am so glad I found a place that proves to me that I am not alone.